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Head Neck. 2020 Sep 22;:
Authors: Clark CM, Newark AC, Fokar A, Maxwell JH
Abstract
BACKGROUND: Single-institution studies suggest that aspirin reduces the risk of death in head and neck cancer. The aim of this study was to investigate the effect of aspirin use on overall survival (OS) in veterans with oropharyngeal cancer (OPC).
METHODS: A total of 23 083 veterans with OPC were identified between 2005 and 2018 from the Veterans Health Administration Corporate Data Warehouse. Records were queried for clinical-demographic data, aspirin prescriptions, and outcomes. Three-year OS was estimated. A Cox model was used to estimate hazard ratios (HR) for aspirin use.
RESULTS: Among the 23 083 identified veterans, 17 206 veterans met inclusion criteria. 21.8% used aspirin. Three-year OS was prolonged for aspirin users (66%) compared to nonaspirin users (54%; P < .001). Adjusted HR for death for nonaspirin users was 1.75 (95% confidence interval (CI) [1.60-1.91]). The average treatment effect of aspirin on survival using inverse probability weighting was 10% (95% CI [0.08-0.11]).
CONCLUSION: Aspirin use following OPC diagnosis was independently associated with improved 3-year OS among veterans nationwide.
PMID: 32959950 [PubMed - as supplied by publisher]
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